Dough-kneading machine.



J. W. V. MASON.

DOUGH KNEADING MACHINE.

APPLIOATION FILED DEO.10, 1912 1,104,814, Patented July 28,1914

4' SHEETS-SHBET l.

m/um.

TL' NORRIS PETERS PHOTO-LITHO.. WA SHINGTON. D. C.

J. W. V. MASON.

DOUGH KNEADING MACHINE.

APPLIOATION IILBD DEO. 10, 1912.

1,104,814. Patented July 28, 1914.

4 SHEETSSHEET 2.

KW m

THE NORRIS PETERS co.. PHOTO-LITHO. WASHINGTON, o. 'c.;

vJ. W. V. MASON.

DOUGH KNEADING MACHINE. I

APPLIOATION FILED DEO.10, 1912.

1,104,814, Patented July 28,1914.

4 SHBETSSHBET 3 THE NOkRIS FET ERS CO., PHOTO-LI'IHUU WAannvulUlV, u L4 J. v. MASON. DOUGH KNEADING. MACHINE.

APPLICATION FILED DEO.10, 1912.

1,104,814, Patented Ju1y 28,1914.

4 SHEETS-SHEET 4.

THE NORRIS PETERS LO" PHOTO-LITHQ. WASHINGTON. D. C.

JOHN WILLIAM VICTOR MASON, or MANCHESTER, ENGLAND.

DOUGH-KNEADING MACHINE.

Specification of Letters Patent.

Patented July 28 1914.

Application filed December 10, 1912. Serial No. 735,879.

To all whom it may concern Be it known that I, JOHN WILLIAM VIO- TOR MAsoN, a subject of the King of Great opened or closed without having to stop the named. The hinges are pivoted'at 0 and Britain, residing at Mona Works, 'Levenshulnie, Manchester, England, have invented new and usefullmprovements in Dough- I Kneading Machines, of which the following; is a specification.

The invention relates to the doors of dough kneading machines, and has for object the operation of the same as hereinafter described, whereby the pans to which such doors are connected may be more effectually and conveniently emptied and cleaned out of dough than heretofore. Y

In carrying out the invention, I provide thepan of the dough kneading machine with a door'o'r doors which is or are revolulole or capable of movement within the hinge or. upon the hinge or hinges supporting the same, thus enabling the door or doors to be motion of said pan.

With reference to the drawings, Figure 1 is a sectional elevation of a portion of one form of apparatus according to mypresent invention,-and in which part; of a pan is? indicated and mechanism for operating thei doors of the same. Fig.2 is a sectional plan view of the major portion of the apparatus, but ona smaller scale.,Figs. 3 and 4 show, on an enlarged scale, details of-the apparat-us, said Fig. 8 being a sectional plan view of part of a door hinge, and said Fig. I 4 a sectional elevation thereofshowing a half door mounted thereon. Fig.15 is a front view, again on a reduced scale, of a hinge and opened door portion of apparatus'assumed to be applied .to a, dough 1 kneading pan. Fig. 6 isa'plan view showing application of a modified form of means for moving said hinge or hinges for a pair of half doors. Fig. 7 is an enlarged viewj of part ofia door hinge having applied thereto a modification relating to means for providing a positivedrive of the pan door, and Fig. 8 is a view at right angles therewith. Fig. 9 shows a sectional elevation of part of a pan and door parts connected therewith, with details having reference to the positive drive aforesaid. .Fig. :10 is a,

broken sectional plan view of part ofvFig. 9 with'certain details added thereto.

, a is thepan and b is the door part thereof. In the present examples the door is made to consist of two halves, but with the use of a single door, the same being circular, it is obvious that the means hereinafter described for insuring the'door parts being in the correct positions for opening would not be necessary, since a complete circular door could Open at any part arranged. 7

Each of thepartsb is in connection with a fixed hinge 0, one portion 0 of which forms a bearing for said part b. Whenthe door is shut the parts referred to can be arrangedto partake of the rotary movement of the pan, or turn'within: said hinge or bearing '0 The panand part doorsare provided with oontactsurfaces ahb respectively. Tight contactkat the said surfaces may be utilized to enable .the motion of the pan to be transmitted to the door parts means are provided for preventing the relative positions of a hinge c and doorpartb being disturbed, or for preventing the, latter falling outof position for. correct closing afterthe pan has been opened, which means the surface of the half door in Fig. 1 will impinge fagainstthe end of the rod d projecting from theiopposing half door, and so eventually force the claw of the lever e out of engagementzwith the slot before named. This is arranged to finally, take place as the doorcloses, thus'releasing the latter forthe purpose fnamed. A rod and mechanism relating, thereto are provided for each half door and hinge, but on opposite sides of the axial parts of the former.

like or bell crank arms 9, (Figs. 1 and 2) provided with cords or flexible connections '5 passing around pulleys k, and preferably so arranged as to lead to centrally situated weights 70 for facilitating the closing of the doors, (Fig. 2). The said quadrants or the like, are shown operated by links Z pivoted at P, and working in a suitable slide Z which slide is here shown upon a rim or bearing upon which the pan is supported and moves, as is well understood.

In Fig. l the position of the mechanism when the doors are opened is indicatedby broken lines. In Fig. 2 the said links Z are to be operatedby handle m, and any suitable form of stop, such as spring clips 112. may be employed for temporarily retaining the links at the extreme positions. To insure the doors'being in the correct positions relatively to the hinges, for opening purposes, a projection b is shown upon one of the doors which projection is capable of engaging a bolt 11, working in a socket upon the hinge. When this bolt is pushed inward, and the projection 12 comes in contact therewith, rotation of the half doors is prevented, and the latter may skid, so to speak, at the surfaces of contact a 6 During the dough kneading operation, the halves of the door are shown supported by additional means such as the part 0, provided, by preference, with ball bearings, which bearings are in connection with a screw device 0 for regulating the degree of contact With the lower parts of the door as is well understood. The device is carried by a bearer or beam 1* upon wheels 8 capable of running on'rails t. The'said bearer may be run out of the way on the rails t, and thus remove the support named when the opening of the pan is desired 1 Fig. 6 shows a modification as an example for operating the hingesc, 0, wherein worm wheels 10 on the pivots of said hinges are operated by worms 1; upona shaft which may be driven when desired. When it is desired to give a positive drive to the door parts of the door, instead of-relying upon contact between the surfaces 64 b the means illustrated in Figs. 7 to 10 maybe employed in substitution for the bolt and projection device, n and 6 already described. That is to say, a bolt a is supported in a socket iece attached to the pan itself, and is capale of being slid into the path of a projection I) attached to the door part 6, thus insuring the latter being driven directly by the pan. In order to automatically cause the bolt 01. to be disconnected from the said rojection, the said bolt is formed with a ug b which is capable of coming in contactwith the wedge shaped plate to when the latter is raised so as to intercept said projection. This plate is supported by spindles 1 under the control of springs 2 (Fig. 8), in connection with the hinge part c, said spindles being actuated by eccentrics 3 operated by shaft 4 and handles 5.

In Fig. 10 the pan is assumed to be rotating in the direction indicated by the external arrow line, when it will be seen that on the bolt n being pushed inward to the position indicated, the same will drive the door part I) through the projection 6 When however the bolt and projection reach the position of the plate w, orthe protuberance b reaches the position 12 and the projection reaches the position b, then if the plate has previously been raised, protuberance b will make contact therewith and the bolt be withdrawn as the pan continues to rotate, while the projection b will about this time of withdrawal come in contact with the projection 6 on said plate w with the result that the door part will be retained in the correct position for opening. The line 7, 8, indicates the position of the dividing line between the two-half doors relatively to the positions of the bolt 07, and pro-jection b the similar line in an oblique direction and broken, shows the said dividing line at the moment the first contact with the plate to described, takes place, and the similar broken line in the horizontal direction gives the position of the same for opening purposes.

I claim 1. In means for operating the doors of the rotatable pans of dough kneading machines, a hinge mounted and operated external to the pan, and having a relatively rotatable door part mounted thereon, and arresting means for stopping'the said door part at a predetermined position relatively to said hinge for enabling the pan to be opened without interfering with its motion,

substantially as herein set forth.

2. In means for operating the doors of the rotatable pans of dough kneading machines, a hinge mounted and operated external to the pan, and having a relatively rotatable door part mounted thereon, movement arresting means for stopping the said door part at a predetermined position relatively to said hinge and retaining means for keeping the relative positions of hinge and door undisturbed, while the latter is open, substantially as herein set forth.

3. In means for operating the doors of the rotatable pans of dough kneading machines, a hinge mounted and operated external to the pan, and havin a relatively rotatable door part mounted t ereon, a bolt and projection device for arresting the movement of said door part, a, spring bolt name to this specification in the presence of 7 device for retaining the door part and hinge two subscribing Witnesses. in the desired relative positions, While the pan is open, and means for moving said JOHN WILLIAM VICTOR MASON 5 hinge for the purpose of opening said pan, Witnesses:

substantially as herein set forth. ARTHUR GADD,

In testimony whereof I have signed my GEORGE FREDERICK GADD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. r 

